From 6667365739f63d158fddb061f9df8c60521a7020 Mon Sep 17 00:00:00 2001
From: Juergen Jung <github@der-onkel.net>
Date: Sun, 29 Jan 2017 14:18:23 +0100
Subject: [PATCH] Add length Property, fix bug with effect and setPixel

---
 src/schild.ino | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/schild.ino b/src/schild.ino
index 96b93c2..7909317 100644
--- a/src/schild.ino
+++ b/src/schild.ino
@@ -5,7 +5,7 @@
 #include <Adafruit_NeoPixel.h>
 
 #define PIN            D1
-#define NUMPIXELS      30
+#define NUMPIXELS      144
 
 uint16_t i=0,j=0,wait = 50;
 unsigned long lastCall = 0;
@@ -41,10 +41,10 @@ bool onSetPixel(const HomieRange& range, const String& value){
     stripNode.setProperty("pixel").send(value);
     return true;
   }
-  if (range.index < 0 || range.index > NUMPIXELS-1) {
+  if (range.index < 0 || range.index > pixels.numPixels()-1) {
     return false;
   }
-  effect == "none";
+  effect = "none";
   pixels.setPixelColor(range.index, value.toInt());
   pixels.show();
   stripNode.setProperty("pixel_" + String(range.index)).send(value);
@@ -74,6 +74,17 @@ bool onSetClear(const HomieRange& range, const String& value){
   stripNode.setProperty("clear").send(value);
 }
 
+bool onSetLength(const HomieRange& range, const String& value){
+  effect = "none";
+  pixels.clear();
+  pixels.show();
+  int newLength = value.toInt();
+  if(newLength > 0){
+    pixels.updateLength(newLength);    
+  }
+  stripNode.setProperty("length").send(value);
+}
+
 
 void loopHandler() {
   if (effect == "none"){
@@ -170,6 +181,7 @@ void setup() {
   stripNode.advertise("brightness").settable(onSetBrightness);
   stripNode.advertise("effect").settable(onSetEffect);
   stripNode.advertise("clear").settable(onSetClear);
+  stripNode.advertise("length").settable(onSetLength);
 
   pixels.begin();
   pixels.clear();